ffmpeg x11grab not working?

[vasa1]

... Lately I've been focusing on 16.04 so haven't checked 14.04.x as much as I should.

That's perfectly understandable and totally appreciated

[vasa1]

$ apt-cache policy ffmpeg
ffmpeg:
  Installed: 7:3.0.0+git1~trusty
  Candidate: 7:3.0.0+git1~trusty
  Version table:
 *** 7:3.0.0+git1~trusty 0
        500 http://ppa.launchpad.net/mc3man/trusty-media/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status
$

Problem solved with this update. Thank you very much!